[Bug c++/88358] New: variable template definition taken as function template declaration with implicit typename

[blitzrakete at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88358

            Bug ID: 88358
           Summary: variable template definition taken as function
                    template declaration with implicit typename
           Product: gcc
           Version: 9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: blitzrakete at gmail dot com
  Target Milestone: ---

Consider the following (compiled with `-std=c++2a`):

template <typename T>
void f(T::type); // ill-formed, gcc accepts

gcc seems to think that this is a function template declaration. In fact, it is
not, it's an ill-formed variable template. It's also a regression I think in a
way

template <typename T>
int pi(T::your_pi); // variable template, but gcc trunk thinks this is a
function template